Filling bunch builder



Nov. 19, 1929. H. H. HoLcoMBE FILLING BUNCH BUILDER original Filed Nov.27. 1922" I 2 Sheets-Sheet Nov. 19, 1929. ,y H. H. HoLcoMBE A I1,736,314 l FILLING BUNCH BUILDER Original Filed Nov. 27. 1922 2Sheets-Sheet, 2

nvenlor /amerHy/Ya/came By I . .I l. A y Attorney Patented Nov. 19, 1929UNITEDi STATES PATENT OFFICE Homin n. HoLooi/IBE, or BIRMINGHAM,ALABAMA, Assieiron, BY'iyinsivn Assiemiyiniv'rs, To HoLcoMBE TEXTILEneUiPMnirr co. ING., lor BIRMINGHAM, ALABAMA,

A CORPORATION or ALABAMA FILLING BUNCH BUILDER Application filedNovember 27, 19%2, Serial No. 603,437. Renewed Abril 15, 1927.

This invention relates to yarn winding machines and spinning frames thatare adapted to lay a preliminary winding or bunch on the bobbins or yarni'eceivers prior to the laying of the main service winding` thereon.Such bunches are usually laid on the feeler wood of the bobbins and whenthe latter are used in automatic filling-replenishing looms the changeof filling automatically effected by the feeler mechanism will leaveenough yarn in the bunch to avoid mispiclis in the cloth. Heretofore thegeneral mill practice has been for the operator to hold the ring rail oryarn guide means in position to lav this bunch in the position desiredon the feieler Wood of the bobbins, after which the ring rail or yarnguide was released to be thereafter controlled by the usual buildermotion.

The most important object of my invention is to perfect a bunch buildermechanism which is reliable and wholly automatic in its functioning andwhich will respond only to some movement of Vparts incidental to thedofling operation to build a single bunch at the base of the feeler woodof the bobbins.

More particularly my invention is adapted temporarily to interceptcontrol of the ring rail or yarn guide by the main builder motion andcourol it by the bunch builder mechanism whicli will lay on thepreliminary windn preferably witha traverse which will produce ashoitcompact bunch set low on the feeler wood of the bobbins.

A further object of my invention is to avoid any jump of the ring railwhen restoring it to the control of the main builder motion and to thisend l claim broadly the provision of means which will, without injuriousor objectionable effect, transfer .the control of the ring rail from thebunch builder motion to the main builder motion, regardless of theposition of the latter at the time of the change. Since the ring rail isusually held in lowered position with or without a traverse motionduring the winding of the bunch, this feature of my inventioncontemplates gradually raising the ring rail and with it the builder armuntil the main builder cam engages the pitman roller on the builder armand thereby resumes control of the wind; ing mechanism.

A further object is to produce the bunch builder motion by theengagement of simple, inexpensive, automatically controlled, coactingelements which work directly on the builder arm to 'cause the laying ofthe bunch winding, said elements being adapted t'o be engaged only afterthe lowering of the builder arm preparatory to doffing, and Whileengaged they act to impart a short traveise motion to the ring rail.v

A further object is to utilize :means responsive only to the moving ofthe builder 'arni substantially outside of the range of its moveii'ientsin laying the main service winding to control the automatic engagementof the 'coacting elements of the bunch builder motion. y

A further object is to obtain the 'bunch builder motion from a rotatingelement or driver, such as a gear, and a driven element, such as a gearsegment, the former deriving continuous motion from the drive for themain builder cam, and the latter caused to engage and be driven by the'driver, said ele ments while engaged holding the builder arm againstfollowing the main builder cam.

A further object is to pivot the driven element of the bunch buildermotion on the builder arm and providetrip mea-ns adapted automaticallyto control its engagement with the 'clriif'eijz A. further object is todesign the 'bunch building surface .of the gear segment with high andlow teeth to give a traverse, 4and to shape the end of such surface,which last engages the driver so that it will permit the builder arm topass without a jump from its control toy that of the main builder cani.

A further feature of my invention is that the length of the yarn in thebunch canv be varied by changing the extent of the `bunch buildingsurfaceof the driven element 4or the diameter of the driver, as thelonger said elements are engaged the more yarn will be wound in thebunch. l

My invention also comprises. t-he novel details of .construction andarrangements of which arefhereinafter more particularly described andset forth in the appended claims, reference being had to theaccompanying drawings forming a part of this specification in which Ihave illustrated only the preferred embodiment of my invention.

According to the drawings Fig. 1 is a perspective view illustrating mybunch builder attachment in combination with only those parts of aspinning frame which are essential for an understanding of itsoperation.

Fig. 2 is an enlarged end view showing in detail the segmentalcontroller gear, the dotted lines indicating the change in position ofthe aXis of the segmental gear' which is connected to and controls themovement of the builder arm, and this view also shows the shift of thisaxis with reference to the line of pull of the controlling spring toenable it to rot-ate the segmental gear back into mesh with the camshaft gear when released by the latch.

Fig. 3 is a detail view of a bobbin with the main winding shown inoutline and broken away to show the bunch built with my invention on thefeeler wood.

Fig. 4 is a fragmental perspective view of a spinning frame or windingmachine equipped with my present invention and with the end frame brokenaway to show the bunch builder in perspective view.

Similar reference numerals refer to similar parts throughout thedrawings.

In the embodiment of my invention illustrated, I show a ring rail 1having connected thereto a lifting rod 2 connected at its'lower end to arocker arm 3 fast on a rocker shaft e, which also has fast thereon thebevel stand 5. The rocker arm 3 at one end has the usual pedal 6 and atthe other end has a counterweight 7, all as in present standardconstruction.V The bevel stand has attached thereto the usual builderchain 8 which passes about a pulley 9 suitably journaled on the spinningframe and at its lower end connects to thc free end of the builder arm10 which is provided with a pitman stand 11 carrying a pitman roller11a' journaled thereon and adapted to be engaged and operated by abuilder cam 12. This bulider cam is fast on a constantly rotated shaft13 driven in the manner well understood in the art from the head of thespinning machine. In normal operation this cam, by engaging the pitmanroller 11a on the pitman stand, raises and lowers the builder arm andthus, through the connection of chain 8 to the bevel stand, serves toroch the lever 3 up and down and to raise and lower the ring rail forlaying the main service winding. In order that this motion may beinterrupted sufficiently for winding a bunch on the bobbins preliminaryto applying the main winding thereto, I provide, as means suitable toillustrate my invention the following mechanism which consists of a triparm 14C mounted fast on a shaft 15 journaled in a bearing 16 and havingfast thereon a depending crank arm 17 which is pivotally connected atits lower end to a latch rod 18, the free end of which passes through aguide 19 fast on the builder arm 10. The latch rod projects beyond thebuilder arm 10 in position to engage and stop a segmental gear 20 whichis mounted to rotate freely on a stud shaft 21 mounted on the builderarm. This gear 2O is adapted, when released as hereinafter described, tomesh a gear 22 fast on the builder cam shaft 13. A. coil spring 24 isconnected to a pin or stud in a corner of the segmental gear, the springbeing so connected to the gear that when the gear has completed its meshwith the gear 22 and moved almost into engagement with the latch 18, thespring will have moved past dead center (see dotted lines Fig. 2) andwill stand in position to swing the segmental gear back into mesh withthe gear 22 upon the retraction of the latch pin 18. A. coil spring 26engages the trip arm 1-l and holds the latter pressed forward towardsthe bevel stand and the latch pin pressed into gear engaging position.The bearing stand 16 is preferably fastened to base rail on to thefirstSampson next to the head on the gear end of the spinning frame. Thesegmental gear 2O at its end nearest the spring stud is provided withadditional teeth which are struck on a curve converging sharply towardsthe axis of the gear and these teeth thus permit the builder arm to moveupwardly so as to bring the center of the shaft 21 above the line ofpull Vof the spring and at the same time these end teeth 25 perform theimportant function of gradually and easily restoring the builder arm tothe control of the builder cam by permitting the builder arm to riseslowly until its pitman roller 111l will be caused to engage the buildercam without a jump. In this connection it is important to note that itis immaterial what the position of the builder cam may be when thebuilder arm is released for engagement therewith.

After the builder cam has engaged the pitman roller 11L the gears 20 and22 will be out of mesh, the gear 2()l being held by the spring 24against the latch 18 and the builder arm being free to move responsiveto the builder cam 12 to apply the main winding. It is an importantfeature of my invention that the latch will not trip to release the gear2O until the ring rail has moved to dofhng position, as by this means Ican avoid any mis-placing or duplication of the bunehon a quill. Henceit is not important what element is used to trip the gear 2O so long asits automatic tripping will produce the above results. It could Vbetripped by any element that moves with or responsive to the ring rail orwith reference to which the gear 20 has relative movement, and it is tobe noted that it is tripped automatically and will automatically resetitself.

When the yarn receivers have been fully wound and the operator desiresto dof the frame, the pedal 6 is depressed and, after the builder armhas been rewound, the pedal is released so as to permit the ring rail torise into position to start laying the yarn at the proper place on thefeeler wood of the receivers. This pedal motion causes the bevel standto engage and trip the arm 14 which retracts the latch 18, releases thesegmental gear 20, and allows the spring 24 to draw the segmental gear2() around into mesh with the f., gear 22. As long as the gear 2() is inmesh with the gear .22 the teeth on the gear 20, except teeth 25, beingstruck on the same center, will hold the builder rack in the sameposition, notwithstanding that the builder cam l has left the pitmanroller 11a. This gives the requisite interval of rest to the builderrack to permit the winding of a bunch 28 on the feeler wood 29 of thebobbins. This interval is controlled by the number of teeth on the cam"i shaft gear 22. The smaller the diameter of gear 22 the greater willbe the angle of its arc of engagement with the gear 20. The longer theinterval of such engagement, the greater will be the length of the yarnWound in the bunch. At the completion of such interval, which isV alsocontrolled by the extent of the arc of engagement of gear 22 with thegear 20, the teeth 25 at the end of the gear 20, being struck on adecreasing radius,

.5 permit the builder arm to gradually rise until its pitman roller 11aagain engages and comes under control of the builder cam, whereupon themain winding proceeds in normal course. This` in effect, Will cause thefinal windings which complete the bunch to be formed with a traverse inone direction which gradually merges into the service traverse. When thegear 22 releases the segmental gear the latch pin 18 will be in positionto stop and hold it against the tendency of its spring 24 to move itaround on its pivot into position to again engage the gear 22, since thebevel stand will have been moved to the right by the counterweight 7 onthe release of the pedal 6. Upon 515 the next doiing operation the latchwill be again released as above described and the spring 24 will throwthe gears 20 and 22 back into mesh.

In order to wind the most satisfactory It bunch on the bobbins it isdesirable to give the builder arm a slight traverse motion during thiswinding operation and to this end the gear 20 is provided with groups oflong teeth 30 alternating with a short tooth 31 which gives the slightrise and fall to the builder arm necessary to lay the yarn in a smalltight bunch on the feeder wood of the bobbins. The co-acting bunchbuilding elements are adapted be brought automatically into engagementduring the doffing operation so that. upon starting up the machine thebunch will be` the builder arm and the yarn guiding means by the buildercam throughout the building of the-bunch, but should also prevent theaction of the pick Wheel in letting off the chain to lower the ring railas the let o motion will'tend to spread the bunch and displace the mainwindings so as to reduce yarn on the bobbin. At the conclusion of theWinding `of the bunch the let oif mechanism will again function andthebuilder arm will be restored to the control of the builder cam, and thelatter may place a winding over the bunch before laying a full traverseWinding on the bobbin. W'hen I refer to the engagement and disengagementof the bunch building elements as being automatic, I mean that the sameshall respond to any normal functioning of the machine and shall notrequire the bunch building mechanism to be started or stopped as anindividual operation by the attendant.

, Though I have described with great particularity the details of theembodiment of the invention herein shown, it is not to be construed thatI am limited thereto, as Changes in arrangement and substitution ofequivalents may be made by those skilled in the art without departingfrom the invention as defined in the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is 2.-

1. In a bunch builder attachment for spinning frames having a buildercam, a builder arm and yarn guiding means controlled thereby, co-actingelements adapted to ,be brought w into engagement and whiley engaged toact through the builder arm to intercept, While thek bunch is beingwound, control of the yarn guiding means by the builder cam, andautomatic means to engage and disengage said elements.

2. A bunch builder attachment in accordance with claim 1, in which theengaging ele- 'ment are gears, one rotatable with the buildning frameshaving a builder cam, a builder arm, a bevel stand and a'builder chainconnecting the bevel stand and builder arm1 comprising a gear rotatablewith the builder cam, a bunch builder gear adapted to engage and run outof mesh With said other gear, means to mount said bunch builder gear onthe builder arm in such position that When engaged with the irstmentioned gear it interrupts the control ot the builder arm by thebuilder cam, and means to control the erigagement of said gears.

5. A bunch builder attachment for spinning trames in accordance withclaim l, in which the gear control means comprises a latch movableresponsive to a pedal control ling the bevel stand, and spring means tomove the bunch builder gear into mesh when released by theV latch.

6. In a bunch builder of the character described, in combination, abuilder cam, a builder arm, a bevel stand, a builder chain connectingthe stand and builder arm, a gear rotatable With the builder cam, asegmental gear mounted on the builder arm, spring means tending to movesaid segmental gear into mesh with said first mentioned gear, latchmeans to engage and hold the segmental gear after it moves out of meshwith the first mentioned gear, and spring actuated mechanism,automatically responsive to the lowering of the builder arm to doit,l'or releasing said latch.

7. A bunch builder in accordance with claim 6, in Which said latchcontrolled means comprises a spring-pressed trip means connected to thelatch and normally moved to set the latch, said trip means beingdisposed to be engaged and actuated to release the latch when `the bevelstand is depressed to. lower the ring rail to lowermost position.

8. A bunch built er attachment comprising, in combination with a buildercam shaft and bulider' arm ot a spinning trame, a gear mounted on thecam shaft, a segmental gear mounted on the builder' arm, spring meanstending to move said segmental gear into mesh with the cam shatt gear, alatch to hold said `segmental gear out of mesh With said cam shajltgear, and teeth at the end ot the segmental gear which approach cnadecreasing radius towards the gear center to gradually restore thebuilder arm to the control Vof the builder cam.

9. A bunch builder attachment comprising, in combination with a buildercam shaft comprising co-acting elements adapted to Wind a bunch on thebobbins, and trip controlled means automatically responsive to anoperation incidental to cloning the trame to bring said elements int-oengagement controlling the builder arm, said elements by their positiveengagement being adapted to drive themselves out of co-operativerelationship.

ll. A bunch builder for spinning trames according to claim l0, in whichthe trip means comprises a spring actuated stop movable into the path ofone of said elements to hold it disengaged from the other, and a springengaging said stopped element so as to be moved past dead cent-er Whensaid element is stopped, said spring tending to draw said elements intooperating engagement to Wind a bunch.

il. Winding machine, having, in combination, yarn guiding means, abuilder arm connected thereto, builder cam Wihch acts through thebuilder arm to impart service traverse to the yarn guiding means, rotarytoothed gear of circular contour, a segment pivotally mounted on thebuilder arm to string in direction longitudinally thereof into and outot operative relation with the toothed gear and having a series ofteeth, one portion o'f the series being at a greater radial distancefrom the asis of the segment than another portion of the series', that abunch may be built With a iinal traverse that merges intoV the regularservice traverse when the bunch is completed the segment is moved out ofoperative relation with trie gear.

13. A Winding machine, having, in combination, yarn guiding means, abuilder arm connected thereto, a builder cam Which acts through thebuilder arm to impart service traverse to the yarn guiding means, arotary toothed gear ot circular' contour, a segment pivotally mounted onthe builder arm to swing in direction longitudinally thereof into andout oit operat've relation with the toothed gear and havin a series ofteeth, one portion et the be ig at a greater radial `distance 'from theam@ oif the s" ent than another portion of the series, that a bunch maybe builtA with tlnal traverse into the regular service traverse vbunchis con'ipleted and the outof operative relation i. the gear, and meansrendered effective when the machine is stopped and the builder arm isdepressed, for

fmoving the segment into operative relation .vith the gear that thebunch may be automatically built When the machine is again started.

le. In Vbuilder mechanism 'for spinning trames, builder cam, a builderarm normally 'controlled thereby, co-acting bunch building elementsadapted to be brought into engagement and vvhile engaged to interceptcontrol et the builder arm by said cam while the bunch is being Wound,one of said elements being mounted and bodily shiftable on the builderarm, and means automatically responsive to operations incidental todoi'iing the spinning frame for causing said elements to co-act andautomatically wind the bunch when the machine is again started. K

l5. In a builder mechanismt'or spinning frames, a builder arm, yarnguiding means controlled thereby, and two separate control mechanisms,each having independent actuators concurrently driven throughout whichact on the builder arm to control the yarn guiding means, the oneadapted to build a bunch and the other to lay the main service Windingon the bobbins, means operative responsive to movement ot spinningmachine parts incidental to the clotting and restarting operations totransfer the control of the builder arm from the main service windingcontrol to the bunch building control, and means automatically operativeto restore the control of the builder arm, after the bunch 'has beenwound, back again to the main service winding control.

16. In a builder mechanism for spinning frames, a builder arm, yarnguiding means controlled thereby, and two separate control mechanismswhich are synchronously driven from the frame cam shaft and actpositively on the builder arm to impart traverse motion thereto only inthe Ysame direction, the one adapted to build a bunch and the other tolay the main service winding on the bobbins, means operative responsiveto a movement of spinning machine parts incidental to the doting andrestarting operations to transfer the control of the builder arm, fromthe main service winding control to the bunch building control, andmeans automatically operative to restore the control of the builder arm,after the bunch has been wound, back again to the main service windingcontrol.

17. In a builder mechanism for spinning frames, a builder arm, yarnguiding means controlled thereby, and two separate control mechanismswhich act on the builder arm to control the yarn guiding means, the oneadapted to build a bunch and the other to lay the main service windingson the bobbin, means operable responsive to movement of spinning machineparts incidental to the dofling and restarting operations to transferthe control of the builder arm from the main service Winding controlmechanism to the bunch building control mechanism, and meansautomatically operative to restore the control of the builder arm, afterthe bunch has been wound, back again to the main service windingcontrol, the bunch building control mechanism comprising engagingrotatable elements, one of which has a bunch building portion deformedto permit a gradual rise of the builder arm to restore it Without a umpto the control of the builder after the bunch has been wound, said co-'acting elements being gears, one of which has high and low teeth to givetraverse to the bunch winding. l

19. In a bunch builder attachment for spinning frames having a buildercam, a builder' arm, and yarn guiding means controlled thereby, coactingelements adapted to be brought into engagement and while engaged toactthrcugh the builder arm, while the bunch is being Wound to interceptcontrol ot the yarn guiding means by the builder cam, means to engagesaid elements responsive to a movement ot spinning trame parts normallyincidental to dolting and means to eitect the disengagementV of saidelements after the bunch has been wound, lsaid coacting elements beinggears, one of circular and one of segmental contour.

20. In a builder mechanism for Winding machines, the combination of abuildercam and builder arm, yarn guiding means Aconnected to the builderarm, a bunch builder machine comprising an element mounted on thebuilder arm, a rotatable member which is engaged by said element duringbunch building operation, and a controller means rendered elfective,when the machine is stopped and the builder arm is lowered, for movingthe element into bunch building position for automatically winding thebunch when the machine is again started.

21. In a builder mechanism for winding machines, the combination ot abuilder cam and builder arm, yarn guiding means connected to the builderarm, a bunch builder gear element pivotally mounted on the builder armand having a bunch building portion in part of non-circular contour, arotatable member which is engaged by the bunch builder portion ot' thegearV element during bunch building operation, said engaged parts beingrelatively movable into disengaged relation at the conclusion of thebunch building operation, and a controller rendered eilective,` when themachine is stopped and the builder arm is lowered, for moving the gearelement into bunch building position for automatically winding the bunchwhen the machine is' again started.

22. In a builder mechanism for Winding .machines, a builder arm andbuilder cam,

yarn guiding means connected to the builder arm, combined with a bunchbuilder mechanism including a bunch builder segment loosely mounted onthe builder arm and having a bunch builder surface, and a segmentactuator for co-operating with the segi'nent to build a bunch with aplurality of windings.

23. In a builder mechanism for winding machines, a builder arm andbuilder cam, yarn guiding means connected to the builder arm, combinedwith a bunch builder mechanism including a bunch builder segment looselymounted on the builder arm and having a bunch builder surface, and asegment actuator for co-operating with the segment to build a bunch witha plurality of windings with a traverse.

24. In a builder mechanism for winding machines, a builder arm andbuilder cam, yarn guiding means connected to the builder arm, combinedwith a bunch builder mechanism including a bunch builder segment looselymounted on the builder arm and having a bunch builder surface, and asegment actuator for co-operating with the segment to build a bunch witha plurality of wind ings with a traverse which gradually merges into theservice traverse.

,25.In a machine of the class described, yarn guiding means for guidingyarn to yarn receivers, a builder arm, a builder cam, combined with awheel of circular contour rotatable in unison with the builder cam, a

Abuilder element pivotally mounted on the builder arm and having a bunchbuilding surface formed of arcsof different radii and which is traversedby said wheel to build a bunch upon the yarn receivers and move saidelement to an inoperative position to permit the yarn to be then woundupon the receivers with regular service traverse.

26. In combination with a spinning machine comprising a pivoted builderarm, a rotatable cam shaft, a cam mounted on the saidshaft for actuatingthe said builder arm, a movable yarn guide, and means for con nectingthe said yarn guide and builder arm for actuating the same, of strokereducing and AVcontrolling means comprising a spur gear secured. to thesaid cam shaft, a segmental gear mounted on the builder arm and adaptedto move into and out of mesh with the said spur gear, andmeans forautomatically shifting the said segmental gear into position to mesh thespur gear.

Q7. In combination with a spinning machine comprising a movable yarnguide, a

movable builder arm pivoted to the frame of the machine, a drive shaft,lneans mounted on the drive shaft for actuating the said builder arm,and mechanism interposed between the builder arm and guide rail forsimultaneous operation thereof, of stroke reducing means comprising aspur gear mounted on the said `drive shaft, a segmental gear pivoted tothe `out of engagement with the spur gear into position to mesh the spurgear.

29. In a spinning frame, a. drive therefor. a builder motion comprisinga yarn guiding means, two independent actuating mech ani sms constantlydriven by the frame drive and adapted to control said yarn guidingmeans, one for effecting the main or service winding and the other forwinding a bunch on the yarn receivers, and automatic means for shiftingthe control of said yarn guiding mea-ns back and forth from one to theother of said actuating mechanisms.

30. In a spinning frame, a builder motion comprising a yarn guidingmeans, two independent actuating mechanisms adapted to control said.yarn guiding means, `one for effecting the main or service winding andthe other ror winding a bunch on the yarn receivers, and automatic meansfor shifting the control of said yarn guiding means back and forth fromone `to the other of said actuating mechanisms, the automatic controlshifting means comprising a driven gear and a springpressed gearautomatically shiftable into mesh with the driven gear to wind a bunchand out of mesh therewith to apply the main service winding.

3l. An apparatus of the character described, comprising a builder armhaving an actuator cam, a bunch builder secured to the arm including agear segment, teeth of irregu lar formation provided on said segment,and bunch builder gear concentrically arranged with respect to said camand operatively engageable with the teeth of said segment.

32. An apparatus of the character described, comprising a builder armhaving an actuating cam, a bunch builder secured to the arm including agear segment, alternately arranged short and long teeth formed on saidsegment, and a bunch builder gear concentrically arranged with respectto said cam and operatively engageable with the teeth of said segment.

33. In a winding machine having a normally operative cam drive whichacts on a builder arm to control the application of the main servicewinding with traverse on yarn receivers, the combination therewith ofbunch building mechanism comprising co-acting driving and drivenelements normally dis- Cri engaged, means to engage said elements responsive to some manipulation of the .vinding machine normallyincidental to doiling it, said elements when engaged being adapted tohold the builder arm free of its cam drive and being adaptedautomatically to drive themselves out of engagement when the llay ing ofthe bunch has been completed.

34. In a yarn Winding machine, yarn guides, a cam drive, a control meansfor said guides normally driven by said cam te apply the main serviceWinding to yarn receivers` and means to interrupt said drive long enough to build a bunch on the yarn receivers, said means comprising anannulus rotatable With said cam, and a pivoted element movable with saidcontrol means, means responsive to some normal manipulation of theWinding frame incidental to the doiiing thereof to shift the pivotedelement into engagement With said annulus, said annulus and elementcomprising co-acting parts by means of which they are driven out ofengagement and being adapted While engaged to hold the contr-ol meansaway from control by said cam.

35. In a bunch building mechanism for Winding machines, the combinationof a builder cam and builder arm, yarn guiding means connected to thebuilder arm, a bunch builder mechanism comprising an element mounted toshift into and out of operative position on the builder arm, a rotatablemember Which is engaged by said element While in its operative positionyduring bunch building operation, and a controller means renderedeffective, responsive to some normal manipulation of the winding machineinci dental to doing same, for moving theele-I ment into bunch buildingposition for automatiea-lly Winding the bunch when the machine is againstarted, said element being driven into its inoperative position by itscngagement With said rotatable member.

36. In a bunch builder mechanism for spinning frames comprisingco-acting elements adapted to control the builder arm and Wind a bunchon the yarn receivers, and means responsive to some normal operati-onincidental t0 doiiing the spinning frame to bring said elements intoengagement, said elements be ing adapted to drive themselves out ofengagement after causing the Winding et the desired amount of yarn inthe bunch.

37. In a bunch builder mechanism for spinning frames comprisingco-acting elements adapted to control the builder arm and Wind a bunchon the yarn receivers, and means responsive to some normal operationincidental to dofing the spinning frame to bring said elements intoengagement, said elements beingadapted to drive themselves out ofengagement after causing the Winding oit' the desired amount of yarn inthe bunch, and said element-s being adapted by change in size toregulate the extent of their engagement and the length of yarn Woundinto the bunch.

38. The combination in a spinning frame, of a cam driven yarn guidingmeans for the normal Winding operation, and a bunch builder mechanismcomposed of elements which when engaged interrupt the cam drive to saidguiding means, said elements being engageable responsive to someoperation incidental to dotling the frame and being adapted as theydisengage to effect a gradual restoration free of jumps of the yarnguiding means to the control of said cam.

In testimony whereof I aliiX my signature.

HOMER H. HOLCOMBE.

